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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the main role of the Commit Log in Cassandra?
💡 Hint: Consider what happens if a node crashes.
Question 2
Easy
What does a Memtable do?
💡 Hint: Think about where data is temporarily stored before being permanent.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What happens first when a write request is received by a Cassandra node?
- It gets stored in the Memtable.
- It is written to the Commit Log.
- It is sent to replica nodes.
💡 Hint: Think about which component ensures that data can be recovered.
Question 2
True or False: A tombstone represents immediate deletion of data in Cassandra.
- True
- False
💡 Hint: Consider how deletions are handled in Cassandra.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a scenario where multiple write requests hit a Cassandra cluster, explain how the system ensures data consistency across replicas.
💡 Hint: Consider how a quorum might impact this scenario.
Question 2
Discuss the trade-offs of setting a high replication factor in a Cassandra database concerning performance and reliability.
💡 Hint: Think about how write operations are affected by increased data copies.
Challenge and get performance evaluation